Sole-sewing machine



(No Model.) 4 Sheets-Sheet 1.

'- J. E; BERTRAND. some: SEWING MACHINE.

Patented Aug. 8, 1893..

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I No. 502,873.

INVLIJ IJ ..J|: SEF'H ELEIERT M 1:!

TTD NEY (No M0del.) 4 Shets-Sheet 2.

J! B'. BBRTRAND;

SOLE SEWING MACHINE. No. 502,873. Patented Aug. 8, 1 893.

'ATTIJ NEY I A (No Model.) 4 Sheets-Sheet 3.

J. E. BERTRAND.

v SOLBSEWING MACHINE.

No. 502,873. Patente d Aug. 8, 1893.

I I. Illll "-1" FTELEI- WITRIEEEEE- NV N @QQ/M .JEIEIEFH LBE T AND I BYI ip q mcyiw/w ATTU NEY PATENT QFFICE.

JOSEPH ELI BERTRAND, OF BOSTORASgIGNOR OF ONE-HALF TO MELLEN BRAY, or'NnwToN; MASSACHUSETTS.

so LE-SEWglNG .M'AjC H1}: E.

SPECIFICATION ma ea of r es meet Ivo. 5o2,e73, dated. August 8, 1893.Application filed September:17, 182 2t S n no. 446,208. (NamedeL) To aZZwhom it may concern.-"

Be it known that I, JOSEPH ELI BERTR uD, of Boston,in the county ofSuffolk and State of Massachusetts, have invented a new and usefulImprovement in Sole-Sewing Machines, of which the following, taken inconnection with the accompanying drawings, is a specification.

My invention relates to sole sewing machines and it consists in certainnovel features of construction, arrangement and com: bination of partswhich will be readily understood by reference to the description of thedrawings and to the: claims contained herein and in which my inventionis clearly pointed out. C y

Figure 1 of the drawings is a front eleva-l tion of so much of the headof a sole sewing machine as is necessary to illustrate my in- Vention,reference being had to the Letters-Q Patent,No.432,011, granted to meJuly 15, 1890,

and to another application of mine of even date herewith for informationrelative to the parts of the machine not illustrated in the drawings ofthis application. Fig. 2 isa par tial sectional plan showing the sameparts; Fig. 3 is a partial end elevation of the machine and showing thesame parts. Fig. 4 is a vertical section on line 1, 1, on Fig; 2,looking toward the left of said figure. Fig. 5, is a similar section online 2, 2, on Fig. 2 looking toward the left of said figure. Fig. 6 isavertical section through the shuttle, its race and. carrier and theneedle and awl carrying shaft, on line 3, 3, on Fig. 1 and showing theneedle and awl and their carrying arm, the" needle guides or supportsand. the loop spreader in elevation, in the positions they as-1 sumewhen the needle is at the extreme of its rearward movement and the awlis time work. Fig. 7 is a similar view showing the needle and awl at theother extreme of their movement with the needle in the Work. Fig. 8, isa section of a portion of the machine on line 1, 1, on Fig. 2 lookingtoward the right of said figure. Fig. 9, is a front elevation of theneedle and awl carrying arm, its supporting shaft, the needle guides orsupports, the loop spreader and the pinions by which said parts areoscillated about their axis of motion as seen when removed from themachine. Fig. 10 is a plan of the same parts. Fig. 11 is a support j.

sectional elevation of the same parts, the cutting plane being on line4,4, on Fig. 9,and looking toward the left of said figure. Fig. 12 isafront elevation of the presser foot removed from the machine. Fig. 13 isa side elevation of the same looking toward the right of Fig. 1. Fig. 14is a side elevation of -the upper needle guide or stay, and Fig. 15 isaplan of the same.

In the drawings A is the bed or base plate of the head 'of the machine.B B represent portions of D isjthe cam shaft.

E andE are the stands which support the shuttle-race F and in hearingsin which is mounted, the shaft 12 having formed thereon or securedthereto the awl and needle carrying radius arm a, and having looselymounted thereon the loop spreader d, the needle guide e and the needlestay or support f. The shaft 1) has firmly secured thereon the pinion hwhich is acted upon to oscillate said shaft bby the segment H on thelever H to which the end frames.

anoscillating motion is imparted by a cam in the same manner as shownand described in the Letters Patent No. 432,011, dated July 15, 1890,and in another application of mine of even date herewith, Serial No.446,207 to which reference may be had for information regarding allparts of the machine not clearly shown and described in thisapplication. The needle guide 6 has an intermittent oscillating motionimparted thereto by the gear segment-I on the end 'of the leverlengaging with the pinion t' on the hub of said needle guide and asuitable cam acting upon said lever to vibrate it as in my before citedprior patent.

' To the stand E is firmly secured the work It is the thread carrier; isits shaft. Zis the presser foot carried by a presser-bar (not shown),and operated as in my prior patout and pending application before cited.

The radius arm 0 has-clamped thereto by the plate a and clamping screw 0the needle 9 5 d curved to an arc of a circle concentric to the axis ofthe shaft 1) and provided near its point with the barb d In'my priorpatent before cited the awl and needlewere arranged side by side andcarroo ried by separate radius arms or segments which were adjustabletoward and from each other and both entered the work from the same side,and in my pending application the awl and needle are shown and describedas mounted in separate radius arins adjustable toward and from eachother but so arranged relative to each other that they enter the workfrom opposite sides and at different times. In my present inventiontheawl e is secured to the same radius arm 0 that carries the needle d andin the same vertical plane therewith by the plate c and clamping screw 6with its piercing end pointing in the opposite direction to that of theneedle but distant from the piercing end of said needle, in thedirection which the needle points, of somewhat more than one hundred andeighty degrees. By this arrangement of the awl and needle relative toeach other I am enabled to impart to said needle and awl a sufficientlength of stroke so that the needle will draw out the loop below thework to its full extent without the employment of any special orseparate device therefor as shown in Fig. 11.

The needle guide c has formed in its outer end a hole for the passage ofthe needle and serves to stay or support the needle when it is beingforced through the work and prevent it being thrown out of its properposition. It has been found however that with no other stay or supportfor the needle when feeding the work the needle is liable to be sprungto one side to the injury of the needle and also of the work performed.To obviate this defeet I mount upon the shaftb the needle stay arm f theouter end of which has formed therein the slot or groove f in which theneedle lies when the work is being fed, the said outer end of said stayarm being connected to and movable with the presser foot Z when saidfoot is moved up or down, and at the same time is movable laterally withthe needle and the shaft h for the purpose of feeding the work when theneedle is in the position shown in Fig. 7. The connection of the stay fto the presser foot Z may be accomplished in any convenient manner, butI prefer to slot the presser foot as shown in Figs. 12 and 13, andinsert the outer end of the stay arm within said slot as shown in Figs.1, 3, 6, and 7. By this construction and arrangement of the parts theneedle is firmly supported below the work by the needle guide 6 andabove the work by the stay arm f, when the work is being fed so that itis impossible for the needle to be sprung out of shape or position bythe strain of feeding the work.

The shuttle J is mounted in the race F and has an intermittent rotarymotion always in the same direction imparted thereto bythe crank shaft Kthe shuttle carrier g, a pair of cams, a pair of levers and a pair ofconnecting rods precisely as shown and described in my before citedapplication.

The bed A has formed on its uppersurface, at its right hand front cornera dovetailed groove the sides of which are parallel with the front edgeof said bed, in which is fitted,

so as to be movable endwise therein the plate shaft and the needle andawl carrying radius arm in the direction of the length of said shaft inthe same manner as shown and described in my before cited prior patent.

The right hand end of the plate L has formed thereon or secured theretothe segmental ratchet L the curve of which is concentric with the centerof the stud L set in said plate L and upon which is mounted thehand-lever L the handle end of which is provided with the springactuated dog or pawl 02 which engages the teeth of the segment L to locksaid hand-lever in the position to which it is adjusted. The hand-leverL has set in its under side a stud upon which is mounted a segmentalblock n which fits into the curved slot 02 formed in the upper side ofthe fron arm of the lever M fulcrumed at 0 and carrying at its rear enda roll which is acted upon by a cylinder cam to vibrate said lever allas shown and described in my before cited Letters Patent.

The bed A has formed in its upper surface another dovetailed groove atright angles to the front edge of said bed on which is mounted, so as tobe movable endwise therein, the bar or plate 0 provided with twoupwardly projecting ears 1) and p to' the former of which is pivoted thelever O carrying at or near the middle of its length a roll or stud gwhich fits into and reciprocates in the cam slot r formed in the plate 0adjustably secured to the stand 0 as shown in Fig. 8. The ear 1) haspivoted thereto one end of the link 3 the opposite end of which isadjustably pivoted to the slotted lower arm of the lever P which ispivoted at its upper end to the stand P and carries between its two endsa roll or stud 5- (shown in Fig. 2 and in dotted lines in Fig. 8,) whichfits into and is acted upon by the cam path t of the cam disk R toimpart to said plate 0 and lever O a reciprocating motion toward andfrom the front of the machine during which reciprocation the front endof said lever O has imparted thereto, by the action of the cam-slot 4"upon the stud or roll q, a short rise and fall, all as shown anddescribed in my before cited prior patent.

To the front end of the lever O is secured the rear end of thelooper-finger it which has formed on its front end the thread engaginghook u and is bent upward and downward as shown in Figs. 3, 6, 7 and 8and laterally as shown in Figs. 1 and 2 so as to permit a freeoscillation of the needle and awl carrier without conflict therewith.Otherwise the looper-finger 16 is constructed and operated in the samemanner as in my prior patent and pending applicationbefore cited.

The arm f serves the double purpose of a support or stay for the needleupon the side of the work opposite to that at which the needle entersthe work to prevent the needle being sprung or thrown out of its properposition when the work is being fed, and to prevent the loop of thread,when discharged from the hook of the looper=finger and being drawnthrough the work by the rearward movement of the needle from fallingupon the work insuch a position as to be cut by the awl when it piercesthe material. This latter function is performed by the curved androunded projection f which spreads the loop and keeps the two partsseparate until the thread is nearly drawn tight and the awl has piercedthe work. By the action of the curved and rounded projection f upon theleft hand strand of the loop of thread pressing it away from the righthand strand toward the left as said loop is being drawn downward it isimpossible for said loop of thread to lie in a position to be cut by theawl as it enters the work.

The principal movements of the machine when in operation aresubstantially the same as in my prior patent or pending applicationhereinbefore cited and hence they are not fully illustrated in thedrawings or described herein.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a sewing machine the combination with a needle constructed andarranged to enter the work and then be moved laterally to feed the work,and mechanism for moving said needle laterally, of a needle guide on theside of the work that the needleenters the same, and a needle stay orsupport upon the opposite side of the work said guide and stay bothbeing movable laterally with said needle. 2. In a sewing machine thecombination with a work support and a presser-foot, of a needleconstructed and arranged to enter the work from the side that rests uponthe work support and a needle stay or supporting arm upon the oppositeside of the work and constructed and arranged to be moved laterally withsaid needle to feed the work.

3. The combination of a work support a needle constructed and arrangedto enter the work at the side thereof that rests upon said work support;a presser foot constructed and arranged to press upon the side of thework op posite'to said work support; a needle stay or support upon thesame side of the work as, and connected to, the presser-foot so as to bemovable therewith when said presser foot is raised or depressed andadapted to be moved laterally independently of said presser foot, andmeans having provision for moving said needle and needle stay'laterallyto feed the work.

4. The combination in a sewing machine of a needle and awl operatingshaft mounted in bearings so as to be revoluble and movable endwisetherein; a single radius armor segment formed in one piece with orfirmly secured to said shaft so as to be revoluble and movable endwisetherewith; 'a curved needle mounted in and projecting from one side ofsaid arm or segment; a curved awl mounted in and projecting from theopposite side of said arm or segment; a grooved collar fixed on saidshaft, a loop spreader and two needle guides or supports mounted on saidshaft and movable about its axis said needle guides or supports beingarranged upon opposite sides of the work; a shipper arm engaging saidgrooved collar; means having provision for reciprocating said shipperarm to move said shaft endwise; and mechanism for oscillating said shaftto cause the needle and awl to alternately pierce the work.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 14th day of September, A.D. 1892.

JOSEPH ELI BERTRAND.

Witnesses:

N. C. LOMBARD, J AMES T.,MURRAY.

